# HG changeset patch
# User Martin von Zweigbergk <martinvonz@google.com>
# Date 2021-01-07 22:54:56
# Node ID 7e300d297547caad16873643b487e4abd7859725
# Parent  14ce2eb6e8a4ee2fef9dc3a95119d3aeccb30f8c

shelve: move method for getting stat (mtime) to new shelf class

Only the mtime was needed, so I made it restricted to that in the
move.

The new `Shelf` class expects its argument to be a shelf name (not a
arbitrary filename like `shelvedfile` would accept), so only the
shelf name is now passed in.

Differential Revision: https://phab.mercurial-scm.org/D9707

diff --git a/mercurial/shelve.py b/mercurial/shelve.py
--- a/mercurial/shelve.py
+++ b/mercurial/shelve.py
@@ -110,9 +110,6 @@ class shelvedfile(object):
             self.backupvfs.makedir()
         util.rename(self.filename(), self.backupfilename())
 
-    def stat(self):
-        return self.vfs.stat(self.fname)
-
 
 class Shelf(object):
     """Represents a shelf, including possibly multiple files storing it.
@@ -130,6 +127,9 @@ class Shelf(object):
     def exists(self):
         return self.vfs.exists(self.name + b'.' + patchextension)
 
+    def mtime(self):
+        return self.vfs.stat(self.name + b'.' + patchextension)[stat.ST_MTIME]
+
     def writeinfo(self, info):
         scmutil.simplekeyvaluefile(self.vfs, self.name + b'.shelve').write(info)
 
@@ -642,8 +642,8 @@ def listshelves(repo):
         pfx, sfx = name.rsplit(b'.', 1)
         if not pfx or sfx != patchextension:
             continue
-        st = shelvedfile(repo, name).stat()
-        info.append((st[stat.ST_MTIME], shelvedfile(repo, pfx).filename()))
+        mtime = Shelf(repo, pfx).mtime()
+        info.append((mtime, shelvedfile(repo, pfx).filename()))
     return sorted(info, reverse=True)